EUVD-2023-39902

Comprehensive Technical Analysis of EUVD-2023-39902

1. Vulnerability Assessment and Severity Evaluation

The vulnerability EUVD-2023-39902, also known as CVE-2023-35911, pertains to an SQL Injection flaw in the "Contact Form Generator : Creative form builder for WordPress" plugin. This vulnerability allows an attacker to inject malicious SQL commands into the database queries executed by the plugin. The CVSS (Common Vulnerability Scoring System) base score of 9.8 indicates a critical severity level. The scoring vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H breaks down as follows:

• Attack Vector (AV): Network (N) - The vulnerability can be exploited remotely over the network.
• Attack Complexity (AC): Low (L) - The attack requires minimal skill and resources.
• Privileges Required (PR): None (N) - No special privileges are needed to exploit the vulnerability.
• User Interaction (UI): None (N) - No user interaction is required for the attack to succeed.
• Scope (S): Unchanged (U) - The vulnerability does not affect other security scopes.
• Confidentiality (C): High (H) - The vulnerability can lead to a significant breach of confidentiality.
• Integrity (I): High (H) - The vulnerability can lead to a significant breach of integrity.
• Availability (A): High (H) - The vulnerability can lead to a significant breach of availability.

2. Potential Attack Vectors and Exploitation Methods

Attackers can exploit this vulnerability by crafting specially designed input that includes SQL commands. This input can be submitted through the contact form fields, which are then processed by the plugin without proper sanitization. Potential attack vectors include:

• Direct SQL Injection: Injecting SQL commands directly into form fields to manipulate database queries.
• Blind SQL Injection: Using conditional statements to infer database structure and data without direct feedback.
• Union-Based SQL Injection: Combining the results of two SELECT statements to extract additional data.

3. Affected Systems and Software Versions

The vulnerability affects the "Contact Form Generator : Creative form builder for WordPress" plugin versions from n/a through 2.6.0. Users running any version within this range are at risk and should take immediate action to mitigate the threat.

4. Recommended Mitigation Strategies

To mitigate the risk associated with this vulnerability, the following steps are recommended:

• Update the Plugin: Ensure that the plugin is updated to a version that addresses the SQL Injection vulnerability. If a patched version is not available, consider disabling the plugin until a fix is released.
• Input Validation and Sanitization: Implement robust input validation and sanitization mechanisms to prevent malicious input from being processed.
• Use Prepared Statements: Ensure that all database queries use prepared statements to separate SQL code from data.
• Web Application Firewalls (WAF): Deploy WAFs to detect and block SQL Injection attempts.
• Regular Security Audits: Conduct regular security audits and vulnerability assessments to identify and address potential security issues.

5. Impact on European Cybersecurity Landscape

The presence of this vulnerability in a widely-used WordPress plugin underscores the importance of vigilant cybersecurity practices within the European Union. Given the critical nature of the vulnerability, it poses a significant risk to organizations and individuals using the affected plugin. The potential for data breaches, unauthorized access, and service disruptions can have far-reaching implications, including financial losses, reputational damage, and legal consequences under GDPR.

6. Technical Details for Security Professionals

For security professionals, the following technical details are pertinent:

• Vulnerability Type: SQL Injection
• Affected Component: Contact Form Generator : Creative form builder for WordPress
• Affected Versions: n/a through 2.6.0
• Exploitation Method: Injection of malicious SQL commands through form fields
• Mitigation: Update to a patched version, implement input validation, use prepared statements, deploy WAFs
• References:
  • Patchstack Vulnerability Report
  • NVD Detail

By addressing this vulnerability promptly and effectively, organizations can significantly reduce their risk exposure and enhance their overall cybersecurity posture.